The use of Google Earth in drainage network changes analysis: study of brazilian coastal cities
Keywords:
Google Earth images, coastline, drainage network, morphological changes.Abstract
In Brazil, an intense urban occupation at the coastal areas have been increased the environmental impacts, especially those related to changes in layout and dynamic of the drainage network. Thus, this article aimed to evaluate the drainage network morphological changes of Cubatão and Bertioga urban areas (SP – Brazil), from an comparative data analysis of traditional aerophotogrammetric materials and those obtained in Google Earth. Thus, it was created an urban area drainage network map of those cities, from 1962 scenario, using aerial photographs stereoscopes pairs. This map was compared with a group of high resolution satellite images, from 2010 scenario, obtained in Google Earth. These procedures have allowed to evaluate the morphological changes in fluvial channels, which are linked with the neighborhoods and industries constructions at the oldest settled region in Brazil.
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